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Dr. Steven J. Koga, MD

(1 Rating)

Specializes in: Internal Medicine (Adult Medicine)

University of Texas Southwestern Medical School (1991)

Professional interests include: colonoscopy, endoscopy, medical exams, and more.

1906 Fairview Avenue Suite 230
Caldwell, ID 83605

(208) 459-4667

Dr. Steven J. Koga, MD is an internist in Caldwell, ID specializing in internal medicine (adult medicine). He graduated from University of Texas Southwestern Medical School in 1991 and has 35 years of experience. Dr. Steven J. Koga, MD is affiliated with West Valley Hospital and WEST VALLEY MEDICAL GROUP LLC.

Office Locations

West Valley Hospital

1906 Fairview Avenue Suite 230
Caldwell, ID 83605

(208) 459-4667

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Some issues Dr. Steven J. Koga, MD can help you with:

Colonoscopy

Colonoscopy is the use of a special tool called a colonoscope (a thin, flexible tube with a camera on the end) to examine the inside of the colon and rectum. The tube is typically inserted anally, and it allows the physician to examine the large intestine from the inside. It may be done at any time to diagnose bowel problems, but routine colonoscopies are advised after the age of 50 to screen for colon cancer.

A colonoscopy may be performed to diagnose:

Intestinal ulcers
Polyps
Bowel cancer
An unidentified source of pain or bleeding in the intestine

Patients may be asked to drink only liquids in the days before a colonoscopy, or they may be given an enema to remove residual fecal matter. Before the exam, patients are given medication to help them relax, and then lay on their side on a table. The scope is inserted into the anus and gently moved all the way through the large intestine. Air may be pumped into the intestine to improve the view for the physician. Any polyps that are found will be removed. Then the colonoscope will be withdrawn. A colonoscopy is not usually painful, but patients may feel some bloating or have some cramps right afterward. If patients have polyps removed, they might experience a small amount of bleeding. Any side effects should go away within a few hours.

Noteworthy Medicare Patient Procedures Performed by Dr. Steven J. Koga, MD in 2023

Click on any procedure below to see further details on volume and pricing among Medicare patients.

Top 5%

By Volume:

colonoscopy

screening colonoscopy

In 2023, Dr. Steven J. Koga, MD performed more colonoscopy, and screening colonoscopy procedures for Medicare patients than 95% of providers in related specialties within Idaho.

Top 25%

By Volume:

pulmonary testing

By Affordability:

pulmonary testing

In 2012, among providers in related specialties within Idaho, Dr. Steven J. Koga, MD performed more pulmonary testing procedures for Medicare patients than 75% of them and he also had a list price for pulmonary testing that was lower than the list prices billed to Medicare by 75% of them. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Steven J. Koga, MD treated as an internist in Caldwell, ID during 2012 were blood draw, gastrointestinal procedures, minimally invasive procedures and lab tests.

Volume of procedures performed by Dr. Steven J. Koga, MD for Medicare patients.

blood draw	376
diagnostic procedures	92
doctor visit	616
gastrointestinal procedures	172
hospital care	82
inpatient care	82
lab tests	141
minimally invasive procedures	172
nursing home care	46
preventive care	123
pulmonary testing	48
removal of lesion (e.g. growth)	105
skin procedures	13
vaccines	69

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Steven J. Koga, MD treated as an internist in Caldwell, ID during 2013 were blood draw, lab tests, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Steven J. Koga, MD for Medicare patients.

blood draw	341
diagnostic procedures	64
doctor visit	619
gastrointestinal procedures	152
hospital care	16
inpatient care	16
lab tests	153
minimally invasive procedures	152
preventive care	129
pulmonary testing	32
removal of lesion (e.g. growth)	77
skin procedures	13
vaccines	62

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Steven J. Koga, MD.

**Gender**
Male	609
Female	576

**Ethnicity**
Non-Hispanic White	1085
Black	0
Hispanic	75
Asian	11
Other	0
Native American	0

**Age**
From 65 to 74	483
From 75 to 84	371
85 and over	149
Less than 65	182

Conditions of Medicare patients treated by Dr. Steven J. Koga, MD in 2013

Hypertension	66
High Cholesterol	46
Stroke	4
Ischemic Heart Disease	30
Depression	26
Chronic Kidney Disease	28
Asthma	7
Osteoperosis	6
Atrial Fibrilation	14
Heart Failure	19
Chronic Obstructive Pulmonary Disease	18
Diabetes	30
Dementia	9
Cancer	11

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Steven J. Koga, MD treated as an internist in Caldwell, ID during 2014 were blood draw, lab tests, gastrointestinal procedures and minimally invasive procedures.

Volume of procedures performed by Dr. Steven J. Koga, MD for Medicare patients.

blood draw	309
diagnostic procedures	60
doctor visit	572
gastrointestinal procedures	124
hospital care	41
inpatient care	41
lab tests	151
minimally invasive procedures	124
nursing home care	36
preventive care	107
pulmonary testing	25
removal of lesion (e.g. growth)	72
skin procedures	12
vaccines	60

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Steven J. Koga, MD.

**Gender**
Male	599
Female	580

**Ethnicity**
Non-Hispanic White	1071
Black	0
Hispanic	72
Asian	0
Other	18
Native American	0

**Age**
From 65 to 74	453
From 75 to 84	383
85 and over	160
Less than 65	183

Conditions of Medicare patients treated by Dr. Steven J. Koga, MD in 2014

Hypertension	70
High Cholesterol	44
Stroke	4
Ischemic Heart Disease	31
Depression	27
Chronic Kidney Disease	29
Asthma	8
Osteoperosis	6
Atrial Fibrilation	14
Heart Failure	19
Chronic Obstructive Pulmonary Disease	18
Diabetes	33
Dementia	10
Cancer	13

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Steven J. Koga, MD treated as an internist in Caldwell, ID during 2015 were blood draw, lab tests, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Steven J. Koga, MD for Medicare patients.

blood draw	294
diagnostic procedures	34
doctor visit	429
gastrointestinal procedures	107
hospital care	58
inpatient care	43
lab tests	165
minimally invasive procedures	107
outpatient care	15
preventive care	106
pulmonary testing	36
removal of lesion (e.g. growth)	34
vaccines	54

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Steven J. Koga, MD.

**Gender**
Male	1098
Female	1058

**Ethnicity**
Non-Hispanic White	1940
Black	0
Hispanic	160
Asian	0
Other	28
Native American	0

**Age**
From 65 to 74	874
From 75 to 84	692
85 and over	284
Less than 65	306

Conditions of Medicare patients treated by Dr. Steven J. Koga, MD in 2015

Hypertension	69
High Cholesterol	42
Stroke	4
Ischemic Heart Disease	30
Depression	29
Chronic Kidney Disease	29
Asthma	16
Osteoperosis	7
Atrial Fibrilation	14
Heart Failure	19
Chronic Obstructive Pulmonary Disease	19
Diabetes	33
Dementia	10
Cancer	12

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Steven J. Koga, MD treated as an internist in Caldwell, ID during 2016 were blood draw, lab tests, preventive care and minimally invasive procedures.

Volume of procedures performed by Dr. Steven J. Koga, MD for Medicare patients.

blood draw	261
diabetes management	36
diagnostic procedures	36
doctor visit	454
gastrointestinal procedures	110
hospital care	33
inpatient care	33
lab tests	215
minimally invasive procedures	110
preventive care	125
pulmonary testing	34
removal of lesion (e.g. growth)	36
vaccines	39

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Steven J. Koga, MD.

**Gender**
Male	456
Female	454

**Ethnicity**
Non-Hispanic White	814
Black	0
Hispanic	73
Asian	0
Other	12
Native American	0

**Age**
From 65 to 74	364
From 75 to 84	280
85 and over	133
Less than 65	133

Conditions of Medicare patients treated by Dr. Steven J. Koga, MD in 2016

Hypertension	72
High Cholesterol	45
Stroke	5
Ischemic Heart Disease	30
Depression	28
Chronic Kidney Disease	35
Asthma	22
Osteoperosis	7
Atrial Fibrilation	11
Heart Failure	20
Chronic Obstructive Pulmonary Disease	18
Diabetes	31
Dementia	11
Cancer	12

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Steven J. Koga, MD treated as an internist in Caldwell, ID during 2017 were lab tests, blood draw, preventive care and minimally invasive procedures.

Volume of procedures performed by Dr. Steven J. Koga, MD for Medicare patients.

blood draw	156
diabetes management	69
diagnostic procedures	38
doctor visit	445
gastrointestinal procedures	106
hospital care	31
inpatient care	31
lab tests	292
minimally invasive procedures	106
preventive care	141
pulmonary testing	39
removal of lesion (e.g. growth)	38
vaccines	33

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Steven J. Koga, MD.

**Gender**
Male	235
Female	246

**Ethnicity**
Non-Hispanic White	434
Black	0
Hispanic	32
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	184
From 75 to 84	161
85 and over	82
Less than 65	54

Conditions of Medicare patients treated by Dr. Steven J. Koga, MD in 2017

Hypertension	65
High Cholesterol	34
Stroke	4
Ischemic Heart Disease	31
Depression	26
Chronic Kidney Disease	33
Asthma	9
Osteoperosis	7
Atrial Fibrilation	11
Heart Failure	20
Chronic Obstructive Pulmonary Disease	21
Diabetes	31
Dementia	11
Cancer	12

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Steven J. Koga, MD treated as an internist in Caldwell, ID during 2018 were lab tests, blood draw, preventive care and minimally invasive procedures.

Volume of procedures performed by Dr. Steven J. Koga, MD for Medicare patients.

blood draw	166
diabetes management	59
diagnostic procedures	42
doctor visit	510
gastrointestinal procedures	99
lab tests	242
minimally invasive procedures	99
preventive care	133
pulmonary testing	14
removal of lesion (e.g. growth)	42
vaccines	37

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Steven J. Koga, MD.

**Gender**
Male	227
Female	200

**Ethnicity**
Non-Hispanic White	385
Black	0
Hispanic	29
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	182
From 75 to 84	144
85 and over	70
Less than 65	31

Conditions of Medicare patients treated by Dr. Steven J. Koga, MD in 2018

Hypertension	63
High Cholesterol	36
Stroke	4
Ischemic Heart Disease	26
Depression	16
Chronic Kidney Disease	29
Asthma	7
Osteoperosis	4
Atrial Fibrilation	13
Heart Failure	16
Chronic Obstructive Pulmonary Disease	14
Diabetes	28
Dementia	8
Cancer	10

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Steven J. Koga, MD treated as an internist in Caldwell, ID during 2019 were preventive care, minimally invasive procedures, gastrointestinal procedures and blood draw.

Volume of procedures performed by Dr. Steven J. Koga, MD for Medicare patients.

blood draw	90
diabetes management	61
diagnostic procedures	61
doctor visit	594
gastrointestinal procedures	139
lab tests	81
minimally invasive procedures	139
preventive care	151
pulmonary testing	24
removal of lesion (e.g. growth)	61
vaccines	32

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Steven J. Koga, MD.

**Gender**
Male	223
Female	204

**Ethnicity**
Non-Hispanic White	391
Black	0
Hispanic	18
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	183
From 75 to 84	147
85 and over	74
Less than 65	23

Conditions of Medicare patients treated by Dr. Steven J. Koga, MD in 2019

Hypertension	60
High Cholesterol	39
Stroke	4
Ischemic Heart Disease	26
Depression	23
Chronic Kidney Disease	25
Asthma	7
Osteoperosis	5
Atrial Fibrilation	12
Heart Failure	15
Chronic Obstructive Pulmonary Disease	10
Diabetes	24
Dementia	9
Cancer	11

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Steven J. Koga, MD treated as an internist in Caldwell, ID during 2020 were lab tests, blood draw, preventive care and minimally invasive procedures.

Volume of procedures performed by Dr. Steven J. Koga, MD for Medicare patients.

blood draw	88
diabetes management	40
diagnostic procedures	24
doctor visit	434
gastrointestinal procedures	68
lab tests	175
minimally invasive procedures	68
preventive care	82
pulmonary testing	33
removal of lesion (e.g. growth)	24
vaccines	13

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Steven J. Koga, MD.

**Gender**
Male	186
Female	163

**Ethnicity**
Non-Hispanic White	317
Black	0
Hispanic	17
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	153
From 75 to 84	107
85 and over	63
Less than 65	26

Conditions of Medicare patients treated by Dr. Steven J. Koga, MD in 2020

Hypertension	64
High Cholesterol	50
Stroke	3
Ischemic Heart Disease	30
Depression	24
Chronic Kidney Disease	26
Asthma	9
Osteoperosis	7
Atrial Fibrilation	10
Heart Failure	18
Chronic Obstructive Pulmonary Disease	11
Diabetes	23
Dementia	10
Cancer	11

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Steven J. Koga, MD treated as an internist in Caldwell, ID during 2021 were lab tests, minimally invasive procedures, gastrointestinal procedures and pulmonary testing.

Volume of procedures performed by Dr. Steven J. Koga, MD for Medicare patients.

diabetes management	25
diagnostic procedures	23
doctor visit	344
gastrointestinal procedures	39
lab tests	40
minimally invasive procedures	39
preventive care	25
pulmonary testing	38
removal of lesion (e.g. growth)	23

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Steven J. Koga, MD.

**Gender**
Male	190
Female	126

**Ethnicity**
Non-Hispanic White	288
Black	0
Hispanic	13
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	155
From 75 to 84	104
85 and over	43
Less than 65	14

Conditions of Medicare patients treated by Dr. Steven J. Koga, MD in 2021

Hypertension	65
High Cholesterol	52
Stroke	6
Ischemic Heart Disease	29
Depression	19
Chronic Kidney Disease	27
Asthma	7
Osteoperosis	7
Atrial Fibrilation	11
Heart Failure	16
Chronic Obstructive Pulmonary Disease	12
Diabetes	24
Dementia	9
Cancer	10

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Steven J. Koga, MD treated as an internist in Caldwell, ID during 2022 were preventive care, minimally invasive procedures, gastrointestinal procedures and lab tests.

Volume of procedures performed by Dr. Steven J. Koga, MD for Medicare patients.

diabetes management	16
diagnostic procedures	14
doctor visit	405
gastrointestinal procedures	25
lab tests	16
minimally invasive procedures	25
preventive care	27
removal of lesion (e.g. growth)	14

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Steven J. Koga, MD.

**Gender**
Male	198
Female	157

**Ethnicity**
Non-Hispanic White	334
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	154
From 75 to 84	128
85 and over	55
Less than 65	18

Conditions of Medicare patients treated by Dr. Steven J. Koga, MD in 2022

Hypertension	75
High Cholesterol	66
Stroke	6
Ischemic Heart Disease	21
Depression	15
Chronic Kidney Disease	18
Asthma	10
Osteoperosis	12
Atrial Fibrilation	19
Heart Failure	17
Chronic Obstructive Pulmonary Disease	12
Diabetes	22
Dementia	5
Cancer	15

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Steven J. Koga, MD for Medicare patients.

The highest averages for the top procedures that Dr. Steven J. Koga, MD treated as an internist in Caldwell, ID were blood draw, lab tests, preventive care and gastrointestinal procedures.

blood draw	231
diabetes management	43
diagnostic procedures	44
doctor visit	492
gastrointestinal procedures	103
hospital care	43
inpatient care	41
lab tests	151
minimally invasive procedures	103
nursing home care	41
outpatient care	15
preventive care	104
pulmonary testing	32
removal of lesion (e.g. growth)	47
skin procedures	12
vaccines	44

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Steven J. Koga, MD.

**Gender**
Male	365
Female	342

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	1
Non-Hispanic White	641
Native American / Alaskan Native	0
Hispanic	44
Other	5

**Age**
75 to 84	228
85 and over	101
Less than 65	88
65 to 74	289

Average of Total of Conditions of Medicare patients treated by Dr. Steven J. Koga, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Steven J. Koga, MD treated were hypertension, high cholesterol, chronic kidney disease and diabetes.

Hypertension	60
High Cholesterol	41
Stroke	4
Ischemic Heart Disease	25
Depression	21
Chronic Kidney Disease	25
Asthma	9
Osteoporosis	6
Heart Failure	16
Chronic Obstructive Pulmonary Disease	13
Diabetes	25
Atrial Fibrillation	11
Dementia	8
Cancer	10

Education & Training

Dr. Steven J. Koga, MD graduated from University of Texas Southwestern Medical School in 1991. He completed residency at Providence Hospital. He has a state license in Idaho.

Medical School: University of Texas Southwestern Medical School (1991)

Residency: Providence Hospital (1995)

Licensed In: Idaho

Affiliations & Hospitals

Dr. Steven J. Koga, MD is associated with these hospitals and organizations:

West Valley Hospital

WEST VALLEY MEDICAL GROUP LLC

Ratings & Reviews

Dr. Steven J. Koga, MD has an exceptional overall rating with an average of 5.0 out of 5 stars based on 1 ratings. We collect ratings and reviews of Dr. Steven J. Koga, MD from all over the web to help you find the right in Caldwell, ID.

Overall Rating

(1 Rating)

Leave a Review

Reviews Left On DocSpot

Overall Rating: 5.0 2021-01-19

Dr. Koga has been my primary care doctor for decades. His gentle, professional, and compassionate care has never let me down. One of his finest traits is his attentive listening, and I don't know how he finds the time! I never feel rushed when I visit him and leave comforted in knowing I have the best advice!

General Payments

These charts describe general payments received by Dr. Steven J. Koga, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Medtronic Vascular, Inc.	$114 Pacemakers $114
Sunovion Pharmaceuticals Inc.	$78 Brovana $78
Dexcom, Inc.	$49 DEXCOM G6 TRANSMITTER $49
Janssen Pharmaceuticals, Inc	$30 INVOKANA $30
Novo Nordisk Inc	$28 Victoza $28
Other	$110 Osphena $28	BREO $27	FreeStyle Libre blood glucose Flash Monitoring System $24	ELIQUIS $16	FARXIGA $16

**Types of Payments**
Food and Beverage	$379
Education	$30

Biography

These areas are among Dr. Steven Koga's clinical interests: primary care, diabetes management, and esophagogastroduodenoscopy (EGD). He is professionally affiliated with West Valley Hospital. Dr. Koga attended the University of Texas Southwestern Medical School and subsequently trained at Providence Hospital for residency.

Select Year:

Dr. Steven J. Koga, MD

Office Locations

Some issues Dr. Steven J. Koga, MD can help you with:

Noteworthy Medicare Patient Procedures Performed by Dr. Steven J. Koga, MD in 2023

By Volume:

By Volume:

By Affordability:

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Steven J. Koga, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Steven J. Koga, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Steven J. Koga, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Steven J. Koga, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Steven J. Koga, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Steven J. Koga, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Steven J. Koga, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Steven J. Koga, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Steven J. Koga, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Steven J. Koga, MD in 2022

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Average Medicare Patient Data From 2012 - 2022

Average of Total of Conditions of Medicare patients treated by Dr. Steven J. Koga, MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

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